Mochi Stack

About Mochi Stack

Mochi Stack is a one-button tower builder. A soft mochi slab slides back and forth across the very top of your stack, and a single tap (or click, or Space) drops it onto the slab below. The two slabs are compared edge to edge: the part that overlaps stays put, and the overhang shears off and tumbles away as a falling chunk of debris. Because every new slab can only be as wide as the one beneath it, a careless drop leaves you a little narrower each time - and the tower gets harder to land on the thinner it grows.

The escape hatch is the perfect drop. If you tap with the slab centred over the one below (within a small margin of roughly six percent of its width), it snaps dead to the middle, keeps its full width, and actually grows back about seven pixels - up to a 380-pixel cap. Chaining centred drops builds a combo that brightens the sparkle burst, nudges the screen shake, and steps the placement chime up the scale. Perfect drops are the only way to widen a tower that has been whittled thin, so accuracy literally rebuilds your margin for error.

There are 20 hand-tuned levels split across five themed worlds - Sky, Candy, Forest, Night, and Aurora - each adding one new twist on top of the last. Sky is a gentle tutorial; Candy introduces a steady wind that nudges the sliding slab sideways; Forest adds a swaying tower that leans as you build; Night brings sudden gust events and a fog veil near the top of the screen; and Aurora stacks every mechanic together. Each level asks for a set number of slabs - the first is just 6, while Aurora's finale demands 22 - and you clear it by reaching that height without a single complete miss.

Two extras decorate the climb. Gems hover at fixed heights along the way and you collect one by landing a slab whose body passes underneath it, popping a teal ring and a sparkle shower. Golden slabs appear at random and, when you land them with a perfect drop, burst into a wider confetti celebration. After level 20 an endless climb opens up: it switches on every mechanic from the very first floor and ramps the difficulty as you go higher, picking up where the curated set left off rather than restarting from easy.

How to play Mochi Stack

1. Watch the mochi slab slide left and right across the top of your tower.
2. Tap the screen (or press Space) the moment it lines up with the slab below.
3. Whatever overlaps is kept; the part hanging over the edge is sliced off and falls away as debris.
4. Aim for a centred, perfect drop - it snaps to the middle, keeps full width, and grows the slab back a touch.
5. Reach the level's slab count (shown as the number over '/ target' at the top) without ever missing completely.
6. Catch a gem by landing a slab under it, then tap Next to continue or keep going once the endless climb unlocks.

Controls

Tips & strategy

• Read the slab's real position at the instant you tap, not where it looks like it's heading - there is no extra drop travel here, so a centred slab dropped on time lands centred.
• Hunt perfect drops on purpose: a centred placement keeps full width and adds back about seven pixels, the only way to recover a tower that has gone skinny.
• Once you've narrowed, stop chasing width and just protect overlap - aim for the middle of the slab below so even an imperfect drop keeps most of your remaining body.
• On Candy levels onward the wind eases the slab sideways and slowly flips direction, so time your tap to where the slab actually is, not its average swing.
• Forest's swaying tower leans the whole board, but the sliding slab leans with it - judge the gap between slab and slab, never against the straight edge of the screen.
• On Night levels a gust can shove the slab hard with little warning; leave yourself a wider target by aiming dead-centre rather than feathering the very edge.
• Slabs speed up as the tower grows (the slide rate climbs with each placement), so settle into a tapping rhythm early instead of waiting for a slow moment that never comes.
• Only grab a gem when a clean drop already passes under it - sacrificing overlap to reach one gem is rarely worth risking the whole level.

Game features

• True one-button play: tap, click, or press Space, Enter, the up arrow, or W to drop every slab.
• Overlap-and-slice stacking where the overhang shears off and a slab can never grow wider than the one below it.
• A perfect-drop reward that snaps centre, keeps full width, and grows the slab back about seven pixels up to a 380-pixel cap.
• Combo chaining on consecutive perfect drops that raises the sparkle burst, the screen shake, and the pitch of the chime.
• 20 hand-tuned levels across five themed worlds - Sky, Candy, Forest, Night, and Aurora - each layering in a new twist.
• Four stackable hazards introduced world by world: drifting wind, a swaying tower, sudden gusts, and a fog veil near the top.
• Collectible gems at set heights plus random golden slabs that burst into confetti on a perfect landing.
• An endless climb after level 20 with every mechanic on from the first floor and difficulty that ramps as you rise.
• Synthesized, mutable sound effects - a sliced-overhang shear, a rising perfect-drop chime, and a win arpeggio - plus a looping background music track.
• Cleared levels and your unlock progress saved privately in your browser; every clear awards the full three stars.

Why The Centre Is The Only Real Score

Most stackers punish you the instant a slab hangs over the edge. Mochi Stack does the opposite. Any sliver of overlap counts, so you almost never die on a sloppy tap, yet a sloppy tap is its own slow punishment: the kept overlap becomes your new width, and a new slab can never be wider than the one under it. That single rule turns the whole tower into one-way attrition. Drift off-centre a few times and you are no longer playing for height, you are playing to stop the column from quietly starving itself down to a thread.

The way out is the centred drop, and it is the only thing in the game that actually feeds you. Land within roughly six percent of dead centre and the slab snaps to the middle, holds its full width, and grows back about seven pixels, up to a 380-pixel ceiling. So accuracy is not a flourish here, it is your only repair tool. Chaining centred drops also climbs the placement chime up the scale and widens the sparkle ring, which means a recovering tower literally sounds and looks brighter than a decaying one. You hear your own greed paying off.

Because there is no fall arc, what you see is exactly what you drop. The honesty is the point, so the worlds attack your read instead of your reflexes. Candy slides a breeze under the slab that slowly flips sign, so you can never memorise the push. Forest leans the entire tower, but the moving slab leans with it, forcing you to judge gap against gap rather than against the straight screen edge. Night fires sudden gusts under a fog veil; Aurora simply runs all of it at once, by which point dead-centre is less a goal than self-defence.

It is unusually patient with younger or unhurried hands. Idle about five seconds, or shave the tower thin six off-centre drops in a row, and a soft mochi finger hangs down over the column you should be aiming for, telling you where but never when. Hovering gems and random golden slabs dangle optional detours that never threaten the run. The curated twenty climb from a six-slab warmup to a twenty-two-slab Aurora finale, and clearing them opens an endless ascent that begins at that same hardness, every hazard live, slides quickening and starting slabs narrowing the deeper you push.